ORGANS OF DIGESTION. 



A young lean cat which has had no food for twenty- four 

 hours is the best subject for the demonstration of the di- 

 gestive system. Directions for preparing the specimen are 

 given in the chapter on technique. 



The digestive system (Figs. 55 and 56) consists of the 

 alimentary canal and the accessory glands of digestion. 



. 



FIG. 54. DIAGRAM OF A GLAND. 



a, artery ; v, -vein ; c', part of gland covered with capillaries ; c, an 

 acinus like c, cut open; i, duct. 



The canal is made up of the mouth, pharynx, esophagus, 

 stomach, small intestine, and large intestine. Its entire 

 length is about five times that of the cat from the tip of the 

 nose to the root of the tail. The accessory glands consist 

 of five pairs of salivary glands, the liver, and the pancreas. 



105 



